| 摘要 |
<p>For molding complex mechanical components from plastic material in sheets (13-15), any portions (21, 22) of the material projecting from the mold (10) are folded about the respective edges (11, 12) of the mold (10). The sheets (13-15) are transferred to the mold (10) on a number of retractable bars (32) moving in relation to at least one reference bar (36, 36'); and a finger (42) is moved towards the mold (10) by an articulated parallelogram mechanism (43, 44), and is mounted on a supporting bar (47, 53) located between two adjacent retractable bars (32) and adjustable for so orienting the finger (42) as to fold the projecting portion of sheet material in either one of two opposite directions. <IMAGE></p> |
